97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_POWERPC_SETUP_H
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#define _ASM_POWERPC_SETUP_H
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#include <uapi/asm/setup.h>
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#ifndef __ASSEMBLY__
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extern void ppc_printk_progress(char *s, unsigned short hex);
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extern unsigned long long memory_limit;
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extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
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struct device_node;
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/* Used in very early kernel initialization. */
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extern unsigned long reloc_offset(void);
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extern unsigned long add_reloc_offset(unsigned long);
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extern void reloc_got2(unsigned long);
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#define PTRRELOC(x) ((typeof(x)) add_reloc_offset((unsigned long)(x)))
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void check_for_initrd(void);
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void mem_topology_setup(void);
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void initmem_init(void);
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void setup_panic(void);
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#define ARCH_PANIC_TIMEOUT 180
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#ifdef CONFIG_PPC_PSERIES
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extern bool pseries_reloc_on_exception(void);
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extern bool pseries_enable_reloc_on_exc(void);
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extern void pseries_disable_reloc_on_exc(void);
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extern void pseries_big_endian_exceptions(void);
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void __init pseries_little_endian_exceptions(void);
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#else
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static inline bool pseries_reloc_on_exception(void) { return false; }
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static inline bool pseries_enable_reloc_on_exc(void) { return false; }
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static inline void pseries_disable_reloc_on_exc(void) {}
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static inline void pseries_big_endian_exceptions(void) {}
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static inline void pseries_little_endian_exceptions(void) {}
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#endif /* CONFIG_PPC_PSERIES */
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void rfi_flush_enable(bool enable);
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/* These are bit flags */
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enum l1d_flush_type {
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L1D_FLUSH_NONE = 0x1,
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L1D_FLUSH_FALLBACK = 0x2,
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L1D_FLUSH_ORI = 0x4,
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L1D_FLUSH_MTTRIG = 0x8,
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};
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void setup_rfi_flush(enum l1d_flush_type, bool enable);
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void setup_entry_flush(bool enable);
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void setup_uaccess_flush(bool enable);
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void do_rfi_flush_fixups(enum l1d_flush_type types);
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#ifdef CONFIG_PPC_BARRIER_NOSPEC
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void __init setup_barrier_nospec(void);
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#else
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static inline void setup_barrier_nospec(void) { }
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#endif
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void do_uaccess_flush_fixups(enum l1d_flush_type types);
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void do_entry_flush_fixups(enum l1d_flush_type types);
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void do_barrier_nospec_fixups(bool enable);
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extern bool barrier_nospec_enabled;
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#ifdef CONFIG_PPC_BARRIER_NOSPEC
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void do_barrier_nospec_fixups_range(bool enable, void *start, void *end);
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#else
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static inline void do_barrier_nospec_fixups_range(bool enable, void *start, void *end) { }
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#endif
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#ifdef CONFIG_PPC_E500
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void __init setup_spectre_v2(void);
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#else
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static inline void setup_spectre_v2(void) {}
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#endif
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void __init do_btb_flush_fixups(void);
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#ifdef CONFIG_PPC32
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unsigned long __init early_init(unsigned long dt_ptr);
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void __init machine_init(u64 dt_ptr);
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#endif
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void __init early_setup(unsigned long dt_ptr);
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void early_setup_secondary(void);
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/* prom_init (OpenFirmware) */
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unsigned long __init prom_init(unsigned long r3, unsigned long r4,
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unsigned long pp, unsigned long r6,
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unsigned long r7, unsigned long kbase);
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extern struct seq_buf ppc_hw_desc;
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#endif /* !__ASSEMBLY__ */
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#endif /* _ASM_POWERPC_SETUP_H */
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